public abstract class DownloadObserver extends java.lang.Object implements java.util.Observer
构造器和说明 |
---|
DownloadObserver() |
public DownloadObserver()
public void update(java.util.Observable observable, java.lang.Object data)
update
在接口中 java.util.Observer
public abstract void update(DownloadableVideoItem downloader)
downloader
- data
-